Compressed Air vs Nitrogen

[Chickenthief]

One value of Nitrogen over compressed air not mentioned is that it is less prone to pressure variations due to changes in temperature.

Errr NO!

All gasses are under the same laws of thermal dynamics and expand/subtract the same!

Ideal Gas law: P x V = N x R x T

P = Pressure

V = Volume

N = Amount of molecules

R = Avogardos constant (6,023x10E23)

T = Temperature

https://en.wikipedia.org/wiki/Ideal_gas_law



What you get wrong and what you try to adress is the fact that normal shop compressor air has moisture in it compared to nitrogen, Water vapor turns to ice thus causes shrinkage.

Please do read a little of the linked stuff in my posts and larn!

You might actually get smarter ;-)

 

[Chickenthief]

If you don’t want to read the article let me give you the very basics from it. Compressed air is made up of multiple gasses. They all react differently when subject to heat and cold which means compressed air shows greater variations in pressure than nitrogen when exposed to heat and cold which is a single gas. Fill one of your guns with nitrogen and one with compressed air. Ten put them out in the cold.Come back a couple of hours later and see which one had the greater pressure change.

Well yeah maybe in your universe but for the rest of us the above post states the ideal gas law : https://en.wikipedia.org/wiki/Ideal_gas_law

And that clearly states that all gasses act the same way. Even when mixed (how crazy is that?)

The "culprit" is moisture that goes from a gas to a solid passing 32degF.

 

[Chickenthief]

State whare you graduated university and i'll state mine ;-)

 

[xindaris]

Then read the other article and tell me how the other engineers got it wrong?